ref: 920685146057a91a66a5c00ecd6362edf5f9b3fc dir: /testdir/test12.ok/
first line Xtest1.swp under Xtest1.swp under under Xtest1.swp under Xtest1.swp Xtest3 under Xtest3 Xtest3.swp under Xtest3.swp